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Watch advertisers bid for your attention
Every time you visit a website with ads, an auction can happen in under 100 milliseconds. This educational simulator models the signals an ad exchange could use; it does not contact advertisers or run a live auction.
Start the auction to see your live profile.
Waiting for bids...
In a real auction, even losing bidders may receive profile data. In a single page load with multiple ad slots, information might be broadcast to hundreds of companies; this page only models that flow locally.
In a real auction, a publisher consent choice may not cover every ad exchange, DSP, and data partner. This simulator does not send your data to any of them.
RTB bid requests often include precise location, device IDs, and inferred sensitive categories (health conditions, political affiliation, religion).